> I've heard a low dose of Emsam (6mg) gives a better, more stable dopamine baseline, without getting into MAO-A inhibition that happens at upper doses.

This is the broscience theory that you find on Internet forums, but it didn’t play out positively in the actual clinical trials. Getting into full MAOI inhibition was necessary for positive effects.

The “more dopamine” theory appeals to people who treat the brain as a simple machine where you’re adjusting levels of different chemicals, but doesn’t really work out in practice. Dopamine is the neurotransmitter du jour in these circles, but mood and mental health are more than one chemical.